A user came to the IRC channel with CLI errors:
"Client-side error: Validation failure: Missing project ID in
request where one is required."
The root cause was the [api_settings] auth_strategy was set to
"noauth" instead of "keystone".
This patch adds a warning log message to the API process that
warns users that typically the auth_strategy should be set to
keystone.
It also points the user to have an administrator check the keystone
settings in the octavia.conf.
Change-Id: I7793d7a9113b23ac88e7c53d5dc292a70b9453b5
48371c98ee